# John Koller > John Koller is a fee-only financial advisor at Oppenheimer + Close in Arlington, Vermont. John charges a flat fee or retainer. Page: https://find.wellspent.co/advisors/john-koller/ Built from SEC adviser records and the firm's website; last checked October 30, 2026. ## Facts - **Firm:** Oppenheimer + Close - **Based in:** Arlington, Vermont - **Fee model:** Flat fee or retainer - **Assets under management (firm):** $93.0M across 127 accounts - **CRD:** 2400754 (https://adviserinfo.sec.gov/individual/summary/2400754) - **SEC registration:** Investment adviser representative in NY - **Exams passed:** Series 63 (2005) - **Firm size:** 5 employees - **Disclosures:** None reported - **Website:** http://www.oppvest.com ## Frequently asked questions ### Is John Koller a fee-only financial advisor? Yes, according to SEC records as of October 29, 2026: John holds no broker registration, and Oppenheimer + Close reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency on its Form ADV. ### How does John charge for financial advice? John charges a flat fee or retainer. ### Where is John Koller based? John Koller is based in Arlington, Vermont. ### Is John Koller registered with the SEC? Yes. John Koller is registered as an investment adviser representative in NY (CRD 2400754), per SEC Investment Adviser Public Disclosure data as of October 29, 2026. ### How much does Oppenheimer + Close manage? Oppenheimer + Close reports $93.0M across 127 accounts in assets under management. ### How do I contact John Koller? Through John's website, www.oppvest.com. ## Sources - SEC adviser records (https://adviserinfo.sec.gov/individual/summary/2400754): the firm's Form ADV reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency, and the advisor holds no broker registration - SEC Investment Adviser Public Disclosure and Form ADV: registration, exams, and firm facts, data as of October 29, 2026 - The firm's website (https://www.oppvest.com/): specialties, clients served, and fees, checked October 30, 2026 --- Source: Wellspent, the public graph of fee-only advisors (https://find.wellspent.co). No paid placement.